US20060238981A1 - Heat-dissipation device with elastic member and heat-dissipation method thereof - Google Patents
Heat-dissipation device with elastic member and heat-dissipation method thereof Download PDFInfo
- Publication number
- US20060238981A1 US20060238981A1 US11/189,496 US18949605A US2006238981A1 US 20060238981 A1 US20060238981 A1 US 20060238981A1 US 18949605 A US18949605 A US 18949605A US 2006238981 A1 US2006238981 A1 US 2006238981A1
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- US
- United States
- Prior art keywords
- heat
- elastic member
- base
- dissipation
- dissipation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/433—Auxiliary members in containers characterised by their shape, e.g. pistons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
- H01L23/427—Cooling by change of state, e.g. use of heat pipes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Definitions
- the present invention relates in general to a heat-dissipation device, and in particular to a heat-dissipation device with an elastic member and a heat-dissipation method thereof applied to an electronic device.
- FIG. 1 illustrates the relationship between contact force and thermal resistance. When contact force is greater, thermal resistance is lower. For this reason, increasing the contact force can achieve a better heat-dissipation.
- the invention provides a heat-dissipation device with an elastic member and a heat-dissipation method thereof.
- the elastic member comprises a base, and a compressible portion disposed on the base.
- the compressible portion When a shell presses on the compressible portion, the compressible portion generates a compression stroke to make the base forced uniformly.
- the compressible portions are extended curvedly and upward from two sides of the base.
- the base comprises two fixing portions disposed on two sides of the base.
- the base further comprises a convex passage approximately.
- the heat-dissipation device comprises a heat source, a thermal interface material contacting the heat source, a heat-dissipation module contacting the thermal interface material, and an elastic member supporting the heat-dissipation module toward the heat source.
- the steps of the heat-dissipation method comprise overlapping a thermal interface material and a heat-dissipation module on the heat source, and exerting a force toward the heat source to the heat-dissipation module.
- FIG. 1 is the relationship diagram of a contact force and a thermal resistance
- FIG. 2 shows a schematic diagram of an elastic member
- FIG. 3 shows a use case diagram of an elastic member
- FIG. 4 is a use case diagram of an elastic member applied to an electronic device.
- FIG. 5 is a flowchart of a heat-dissipation method.
- an elastic member 1 comprises a base 11 and two compressible portions 12 , 13 .
- the base 11 comprises two fixing portions 111 and a passage 112 .
- the fixing portions 111 are disposed on two sides of the base 11 .
- the compressible portions 12 , 13 are convex, alternately arranged, and extended curvedly and upward from two sides 111 of the base 11 to the center portion 112 of the base 11 .
- the cross section of the passage 112 is substantially ⁇ -shaped, allowing a heat pipe 22 (shown in FIG. 3 ) to pass therethrough.
- the heat-dissipation device 2 is installed in an electronic device 4 .
- the heat-dissipation device 2 comprises a heat-dissipation module 20 and the elastic member 1 .
- the heat-dissipation module 20 comprises a fan 21 , the heat pipe 22 , and a thermal block 23 .
- the thermal block 23 is installed on/over the heat source 30 (for example a heat-dissipation chip) via a thermal interface material 24 .
- the elastic member 1 is fixed on the heat pipe 22 of the heat-dissipation module 20 through the fixing portions 111 by welding, riveting, or screws.
- a distance L shown in FIG.
- the elastic member 1 exists between the top of the compressible portions 12 , 13 and the bottom of the elastic member 1 .
- the elastic member 1 is forced by the shell 40 above the elastic member 1 .
- the compressible portions 12 , 13 generate a compression stroke to absorb the force from the shell 40 .
- a change to the thickness L of the elastic member 1 can affect the compression stroke to change the contact force between the heat source 30 and the heat-dissipation module 20 .
- the invention also can be applied to a heat-dissipation fin to promote the heat-dissipation efficiency via the above principle.
- FIG. 5 illustrates a flow chart of a heat-dissipation method.
- a thermal interface material 24 and a heat-dissipation module 20 are overlapped on the heat source in order (S 1 step).
- An elastic member 1 is presses against the heat-dissipation module 20 and the heat source 30 (S 2 step).
- the S 2 step increases the contact force between the heat source 30 , thermal interface material 24 , and the heat-dissipation module 20 to decrease the thermal resistance promoting heat-dissipation efficiency.
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
- The present invention relates in general to a heat-dissipation device, and in particular to a heat-dissipation device with an elastic member and a heat-dissipation method thereof applied to an electronic device.
- With the progress of computer technology, a bus and a chip speed have increased greatly, thus, computer efficiency has improved. With computer efficiency improving, heat-dissipation problem becomes important to be solved. Chips other than the central processing unit (CPU), such as north bridge and a display chip require enhanced heat-dissipation efficiency. A conventional heat-dissipation module typically emphasizes heat convection, while ignoring heat conduction ability.
FIG. 1 illustrates the relationship between contact force and thermal resistance. When contact force is greater, thermal resistance is lower. For this reason, increasing the contact force can achieve a better heat-dissipation. - Accordingly, the invention provides a heat-dissipation device with an elastic member and a heat-dissipation method thereof.
- The elastic member comprises a base, and a compressible portion disposed on the base. When a shell presses on the compressible portion, the compressible portion generates a compression stroke to make the base forced uniformly.
- The compressible portions are extended curvedly and upward from two sides of the base. The base comprises two fixing portions disposed on two sides of the base. The base further comprises a convex passage approximately.
- The heat-dissipation device comprises a heat source, a thermal interface material contacting the heat source, a heat-dissipation module contacting the thermal interface material, and an elastic member supporting the heat-dissipation module toward the heat source.
- The steps of the heat-dissipation method comprise overlapping a thermal interface material and a heat-dissipation module on the heat source, and exerting a force toward the heat source to the heat-dissipation module.
- The present invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
-
FIG. 1 is the relationship diagram of a contact force and a thermal resistance; -
FIG. 2 shows a schematic diagram of an elastic member; -
FIG. 3 shows a use case diagram of an elastic member; -
FIG. 4 is a use case diagram of an elastic member applied to an electronic device; and -
FIG. 5 is a flowchart of a heat-dissipation method. - Referring to
FIG. 2 , anelastic member 1 comprises abase 11 and twocompressible portions base 11 comprises twofixing portions 111 and apassage 112. Thefixing portions 111 are disposed on two sides of thebase 11. In this embodiment, thecompressible portions sides 111 of thebase 11 to thecenter portion 112 of thebase 11. The cross section of thepassage 112 is substantially π-shaped, allowing a heat pipe 22 (shown inFIG. 3 ) to pass therethrough. - Referring to
FIGS. 3 and 4 , the heat-dissipation device 2 is installed in anelectronic device 4. The heat-dissipation device 2 comprises a heat-dissipation module 20 and theelastic member 1. The heat-dissipation module 20 comprises afan 21, theheat pipe 22, and athermal block 23. Thethermal block 23 is installed on/over the heat source 30 (for example a heat-dissipation chip) via athermal interface material 24. Theelastic member 1 is fixed on theheat pipe 22 of the heat-dissipation module 20 through thefixing portions 111 by welding, riveting, or screws. A distance L (shown inFIG. 4 ) exists between the top of thecompressible portions elastic member 1. Theelastic member 1 is forced by theshell 40 above theelastic member 1. When theelastic member 1 is pressed, thecompressible portions shell 40. Moreover, a change to the thickness L of theelastic member 1 can affect the compression stroke to change the contact force between theheat source 30 and the heat-dissipation module 20. Furthermore, the invention also can be applied to a heat-dissipation fin to promote the heat-dissipation efficiency via the above principle. -
FIG. 5 illustrates a flow chart of a heat-dissipation method. Athermal interface material 24 and a heat-dissipation module 20 are overlapped on the heat source in order (S1 step). Anelastic member 1 is presses against the heat-dissipation module 20 and the heat source 30 (S2 step). The S2 step increases the contact force between theheat source 30,thermal interface material 24, and the heat-dissipation module 20 to decrease the thermal resistance promoting heat-dissipation efficiency. - While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Claims (13)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW94112886 | 2005-04-22 | ||
TW094112886A TWI282724B (en) | 2005-04-22 | 2005-04-22 | Heat-dissipating device with elastic piece and heat-dissipating method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
US20060238981A1 true US20060238981A1 (en) | 2006-10-26 |
US7312997B2 US7312997B2 (en) | 2007-12-25 |
Family
ID=37186625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/189,496 Active 2025-09-19 US7312997B2 (en) | 2005-04-22 | 2005-07-26 | Heat-dissipation device with elastic member and heat-dissipation method thereof |
Country Status (2)
Country | Link |
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US (1) | US7312997B2 (en) |
TW (1) | TWI282724B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090038782A1 (en) * | 2007-08-10 | 2009-02-12 | Kuo-Hsin Chen | Heat-conducting module |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101106888B (en) * | 2006-07-14 | 2012-06-13 | 富准精密工业(深圳)有限公司 | Heat radiation module |
JP2009043097A (en) * | 2007-08-09 | 2009-02-26 | Fujitsu Ltd | Electronic equipment and heat radiation unit |
CN101636067B (en) * | 2008-07-25 | 2012-08-22 | 富准精密工业(深圳)有限公司 | Heat sink |
CN101674717B (en) * | 2008-09-11 | 2012-05-16 | 富准精密工业(深圳)有限公司 | Radiation device |
TWI487470B (en) * | 2009-01-16 | 2015-06-01 | 鴻準精密工業股份有限公司 | Heat dissipation device and electronic device using same and heat dissipation fin thereof |
CN101861078A (en) * | 2009-04-10 | 2010-10-13 | 富准精密工业(深圳)有限公司 | Heat sink and manufacturing method thereof |
JP2011081437A (en) * | 2009-10-02 | 2011-04-21 | Toshiba Corp | Electronic equipment |
JP4908610B2 (en) * | 2010-04-09 | 2012-04-04 | 株式会社東芝 | Electronics |
Citations (12)
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US4235285A (en) * | 1979-10-29 | 1980-11-25 | Aavid Engineering, Inc. | Self-fastened heat sinks |
US4246597A (en) * | 1979-06-29 | 1981-01-20 | International Business Machines Corporation | Air cooled multi-chip module having a heat conductive piston spring loaded against the chips |
US6301107B1 (en) * | 1998-07-27 | 2001-10-09 | Compaq Computer Corporation | Heat dissipation structure for electronic apparatus component |
US6328097B1 (en) * | 2000-06-30 | 2001-12-11 | Intel Corporation | Integrated heat dissipation apparatus |
US6347036B1 (en) * | 2000-03-29 | 2002-02-12 | Dell Products L.P. | Apparatus and method for mounting a heat generating component in a computer system |
US6345664B1 (en) * | 1997-02-24 | 2002-02-12 | Fujitsu Limited | Heat sink and information processor using heat sink |
US6366460B1 (en) * | 1998-07-27 | 2002-04-02 | Compaq Computer Corporation | Heat dissipation structure for electronic apparatus component |
US6400565B1 (en) * | 2000-04-21 | 2002-06-04 | Dell Products L.P. | Thermally conductive interface member |
US6442025B2 (en) * | 2000-01-07 | 2002-08-27 | Kabushiki Kaisha Toshiba | Cooling unit for cooling heat generating component and electronic apparatus having the cooling unit |
US6504720B2 (en) * | 2000-09-25 | 2003-01-07 | Kabushiki Kaisha Toshiba | Cooling unit for cooling heat generating component, circuit module including the cooling unit, and electronic apparatus mounted with the circuit module |
US6708754B2 (en) * | 2001-07-25 | 2004-03-23 | Wen-Chen Wei | Flexible heat pipe |
US6883594B2 (en) * | 2001-11-30 | 2005-04-26 | Thermal Corp. | Cooling system for electronics with improved thermal interface |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI234257B (en) | 2003-06-30 | 2005-06-11 | Advanced Semiconductor Eng | Heat sink structure and chip package structure thereof |
-
2005
- 2005-04-22 TW TW094112886A patent/TWI282724B/en not_active IP Right Cessation
- 2005-07-26 US US11/189,496 patent/US7312997B2/en active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4246597A (en) * | 1979-06-29 | 1981-01-20 | International Business Machines Corporation | Air cooled multi-chip module having a heat conductive piston spring loaded against the chips |
US4235285A (en) * | 1979-10-29 | 1980-11-25 | Aavid Engineering, Inc. | Self-fastened heat sinks |
US6345664B1 (en) * | 1997-02-24 | 2002-02-12 | Fujitsu Limited | Heat sink and information processor using heat sink |
US6570761B2 (en) * | 1998-07-27 | 2003-05-27 | Hewlett Packard Development Company, L.P. | Heat dissipation structure for electronic apparatus component |
US6301107B1 (en) * | 1998-07-27 | 2001-10-09 | Compaq Computer Corporation | Heat dissipation structure for electronic apparatus component |
US6366460B1 (en) * | 1998-07-27 | 2002-04-02 | Compaq Computer Corporation | Heat dissipation structure for electronic apparatus component |
US6442025B2 (en) * | 2000-01-07 | 2002-08-27 | Kabushiki Kaisha Toshiba | Cooling unit for cooling heat generating component and electronic apparatus having the cooling unit |
US6347036B1 (en) * | 2000-03-29 | 2002-02-12 | Dell Products L.P. | Apparatus and method for mounting a heat generating component in a computer system |
US6400565B1 (en) * | 2000-04-21 | 2002-06-04 | Dell Products L.P. | Thermally conductive interface member |
US6328097B1 (en) * | 2000-06-30 | 2001-12-11 | Intel Corporation | Integrated heat dissipation apparatus |
US6504720B2 (en) * | 2000-09-25 | 2003-01-07 | Kabushiki Kaisha Toshiba | Cooling unit for cooling heat generating component, circuit module including the cooling unit, and electronic apparatus mounted with the circuit module |
US6708754B2 (en) * | 2001-07-25 | 2004-03-23 | Wen-Chen Wei | Flexible heat pipe |
US6883594B2 (en) * | 2001-11-30 | 2005-04-26 | Thermal Corp. | Cooling system for electronics with improved thermal interface |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090038782A1 (en) * | 2007-08-10 | 2009-02-12 | Kuo-Hsin Chen | Heat-conducting module |
Also Published As
Publication number | Publication date |
---|---|
US7312997B2 (en) | 2007-12-25 |
TWI282724B (en) | 2007-06-11 |
TW200638850A (en) | 2006-11-01 |
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